838mm or 33 Inch Fire Doors

Our widest standard width, 838mm (33 inch) fire doors suit larger rooms, main hallways and more generous openings. An oak veneer over an FD30 fire-resisting core, prefinished or ready to finish.

Girona Unfinished Oak FD30 Internal Fire Door

Girona Unfinished Oak FD30 Internal Fire Door

£184.50 (inc VAT)

Edmonton Prefinished Oak FD30 Internal Fire Door

Edmonton Prefinished Oak FD30 Internal Fire Door

£365.95 (inc VAT)

Cotswold Prefinished Oak 6 Panel FD30 Internal Fire Door

Cotswold Prefinished Oak 6 Panel FD30 Internal Fire Door

£163.50 (inc VAT)

Arnhem Prefinished Oak 2 Panel FD30 Internal Fire Door

Arnhem Prefinished Oak 2 Panel FD30 Internal Fire Door

£441.95 (inc VAT)

Lifestyle Modern interior design with a oak door and TV unit against a light gray wall.
Malmo Prefinished Oak Internal Fire Door

Malmo Prefinished Oak Internal Fire Door

£340.16 (inc VAT) £377.95

Product Mexicano half light clear glazed prefinished fire door
Lifestyle Mexicano half light clear glazed prefinished fire door installed

Mexicano Half Light Clear Glazed Prefinished Fire Door

£870.95 (inc VAT)

Product prefinished oak flush fire door on white background

Oak Prefinished Internal Flush Fire Door

£139.95 (inc VAT)

Lifestyle prefinished oak Regency FD30 door installed in room
Product prefinished oak Regency four panel FD30 door

Prefinished Oak Regency 4P Non Raised FD30 Door

£235.95 (inc VAT)

Lifestyle Amsterdam 3 panel prefinished oak fire door in room
Product Amsterdam 3 panel prefinished oak internal door

Amsterdam 3 Panel Prefinished Oak Internal Fire Door

£514.95 (inc VAT)

Lifestyle Eindhoven 1 panel prefinished oak internal fire door in room
Product Eindhoven 1 panel prefinished oak internal door

Eindhoven 1 Panel Prefinished Oak Internal Fire Door

£489.95 (inc VAT)

Lifestyle Pattern 10 one panel glazed oak door installed in room
Product Pattern 10 one panel glazed oak door

Pattern 10 One Panel Glazed Oak Fire Door

£888.95 (inc VAT)

Product Pattern 10 one panel oak internal door
Product Pattern 10 one panel oak internal door

Pattern 10 One Panel Oak Fire Door

£235.95 (inc VAT)

Product Inlay one panel oak veneer FD30 internal fire door
Product Inlay one panel oak veneer FD30 internal fire door

Inlay 1P Oak Veneer FD30 Internal Fire Door

£301.95 (inc VAT)

Product Idaho prefinished oak internal door
Product Idaho prefinished oak internal door

Idaho Prefinished Oak FD30 Internal Fire Door

£358.95 (inc VAT)

Product contemporary 4 panel shaker prefinished oak fire door
Product contemporary 4 panel shaker prefinished oak fire door

Contemporary 4 Panel Shaker Prefinished Oak Fire Door

£262.95 (inc VAT)

Lifestyle Melbourne prefinished oak fire door installed
Lifestyle Melbourne prefinished oak fire door installed

Melbourne Pre-finished Oak Fire Door

£406.95 (inc VAT)

Lifestyle Deanta oak prefinished internal flush FD60 fire door installed
Product Deanta oak prefinished internal flush FD60 fire door

Oak Prefinished Internal Flush FD60 Fire Door

£373.95 (inc VAT)

Lifestyle Deanta Ely prefinished oak FD60 fire door installed in a room setting
Product Deanta Ely prefinished oak FD60 fire door

Ely Prefinished Oak FD60 Fire Door

£401.95 (inc VAT)

Lifestyle flush prefinished oak glazed FD30 fire door installed
Product flush prefinished oak glazed FD30 fire door

Flush Prefinished Oak Glazed FD30 Fire Door

£355.95 (inc VAT)

Lifestyle Reims five panel diamond prefinished oak FD30 fire door installed
Product Reims five panel diamond prefinished oak FD30 fire door

Reims 5 Panel Diamond Prefinished Oak FD30 Fire Door

£533.95 (inc VAT)

Lifestyle Coventry prefinished oak 6 panel FD30 internal fire door installed in a room setting
Product Coventry prefinished oak 6 panel FD30 internal fire door

Coventry Prefinished Oak 6 Panel FD30 Internal Fire Door

£408.95 (inc VAT)

Lifestyle Vancouver prefinished oak long light glazed FD30 fire door installed in a room
Product Vancouver prefinished oak long light glazed FD30 fire door alternate detail view

Vancouver Prefinished Oak Long Light Glazed FD30 Fire Door

£613.95 (inc VAT)

Product Mexicano half light clear glazed prefinished fire door
Product Mexicano half light clear glazed prefinished fire door

Mexicano Half Light Glazed Fire Door

£828.95 (inc VAT)

Lifestyle Torino prefinished oak fire door installed in a room
Product Torino prefinished oak fire door

Torino Prefinished Oak Fire Door

£291.56 (inc VAT) £323.95

Lifestyle Torino glazed prefinished oak fire door installed in a room
Product Torino glazed prefinished oak fire door version

Torino Glazed Prefinished Oak Fire Door

£725.36 (inc VAT) £805.95

Lifestyle Sorrento prefinished oak fire door installed in a room
Product Sorrento prefinished oak fire door front view

Sorrento Prefinished Oak Fire Door

£320.95 (inc VAT)

Oak Fire Doors for the Widest Openings

At 838mm, or 33 inches, this is the widest standard leaf we stock, chosen for larger rooms, main hallways and open-plan spaces where a broader door changes how the space feels. It is also the width people reach for when they want the most generous, accessible opening, since a wider leaf leaves more clear space once the frame and stops are accounted for. Every door here is one of our oak fire doors in an 838mm width, an oak veneer over a dense, fire-resisting engineered core.

For Main Rooms and Busy Routes

A 33 inch leaf suits the busiest and most generous openings in a home: a main reception room, a wide landing, or an open-plan space where a fire door still has to separate a kitchen or an escape route. The extra width keeps the proportions right in a large room and gives the most clear space of any standard size for everyday movement and for carrying furniture through. If you are matching doors across a house, check the structural opening carefully, as a 33 inch leaf needs a correspondingly larger frame and reveal.

Designs for a Broad Opening

A wider leaf carries panel and glazing proportions well, so a broad opening is a chance to make a feature of the door. Panelled faces suit a larger traditional room, flush and grooved faces work in an open-plan or contemporary space, and where you want to carry light through a wide opening our glazed fire doors are made in this width with fire-rated glass in the same certified core.

  • Panelled designs for larger traditional rooms
  • Flush and grooved faces for open-plan and contemporary spaces
  • Glazed fire doors for wide, light-sharing openings
  • Prefinished or unfinished, to match a tone across the house

How These Fire Doors Are Built

These doors are made by established fire-door manufacturers such as Deanta, LPD and JB Kind, and share the build common to every real fire door: a fire-resisting core beneath an oak veneer, edged with oak lippings. The core provides the certification and the oak face the finish, so even the widest leaf is a veneer over a core rather than solid oak. Most are FD30, giving up to 30 minutes of protection; where a 60 minute door is specified, our FD60 fire doors meet that requirement.

Hanging a Wider, Heavier Leaf

A fire door only reaches its rating as a complete, fitted set, and a leaf this size is the heaviest of the range. It hangs in a suitable fire door frame or lining, usually on three fire-rated hinges and sometimes four to carry the weight, with intumescent strips and smoke seals closing the gaps as heat builds. On finishing, a prefinished door seals at the factory and hangs faster, though its cut-outs must be sealed as you fit, while an unfinished door lets you match a tone across the house once every face and edge is treated, as set out in our internal door treatments guide.

838mm (33 Inch) Fire Door FAQs

No. Like all genuine fire doors, each 838mm door has a dense, fire-resisting engineered core finished with an oak veneer and oak lippings. The core provides the fire rating while the oak face gives the natural grain of an oak door.

838mm is 33 inches, the widest standard internal door leaf. It suits larger rooms and wider openings rather than typical bedroom doorways.

A wider leaf gives a more generous clear opening, which can help with access, though the exact clear width depends on the frame and how far the door opens. Check the specific requirement for your project against current guidance.

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